EPC Ratings in South West Hertfordshire

Parliamentary Constituency — 13,410 Energy Performance Certificates on record

13K

Certificates

13K

Properties

D (68)

Average Rating

£1,168

Avg Energy Cost/yr

EPC Rating

A92+

0.5%

B81–91

14.7%

C69–80

40.2%

D55–68

32.5%

E39–54

10.4%

F21–38

1.3%

G1–20

0.4%

South West Hertfordshire is 0.5 points worse than the national average (D, 68.5/100).

South West Hertfordshire

68.5

National average

Potential

Rating Distribution

620.5%

14.7%

1,975

40.2%

5,395

32.5%

4,355

10.4%

1,393

1781.3%

520.4%

Average Annual Energy Costs

Cost Type	South West Hertfordshire	National Avg	Difference
Heating	£882/yr	£782/yr	▲ £100
Hot water	£176/yr	£184/yr	▼ £8
Lighting	£110/yr	£95/yr	▲ £15
Total	£1,168/yr	£1,061/yr	▲ £107

Property Types

House

8,31062.0%

Flat

4,12730.8%

Bungalow

6584.9%

Maisonette

2922.2%

Park home

230.2%

Main Heating Fuel

Mains gas

11,31485.7%

Electric

1,65912.6%

Oil

1481.1%

LPG

450.3%

Other

430.3%

CO₂ Emissions

3.9 tonnes/yr

Current average

2.2 tonnes/yr

Potential

Average floor area: 105 m²

Construction Age

Pre-1900

692

1900–1929

904

1930–1949

1,744

1950–1966

2,796

1967–1975

1,421

1976–1982

739

1983–1990

1,164

1991–1995

612

1996–2002

596

2003–2006

337

2007–2011

334

2012+

1,678

Efficiency Trend Over Time

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South West Hertfordshire has 13,410 Energy Performance Certificates on record, covering 12,788 properties. The average EPC rating is D with an efficiency score of 68 out of 100. Annual energy costs average £1,168, comprising £882 for heating, £176 for hot water and £110 for lighting. Average CO₂ emissions are 3.9 tonnes per year.